Stainless Steel Blackener?

[Sharp Minded]

I have stainless Hinderer hardware that I would like to “blacken”.

Has anyone tried the stainless blackeners? Do blackeners affect the threads?

I’ve used ferric chloride to black wash blades before, but I think that might might affect the hardware threads.

Purchasing black hardware is not an option. They’re out of stock everywhere.

Thanks!

 

[ecallahan]

I’ve used Caswell stainless steel blackener gel and it has worked well. They sell a small kit of blackener gel and sealer. You can use a q tip to apply the blackener, wait a few minutes and rinse with water, then apply the sealer. There are a few YouTube videos showing it in action. It worked well for me.

 

[eKretz]

Ferric chloride won't work on most or maybe any stainless steels. Some stainless steels can be blackened with a dilute solution of muriatic (hydrochloric) acid.